Why do SO proponents feel it's smart to answer questions with 'this question is closed because dupe' or some other useless bullshit answer. It's no harder to s

Why do SO proponents feel it's smart to answer questions with 'this question is closed because dupe' or some other useless bullshit answer. It's no harder to say 'this question is closed. You will find that the best answer can be found at <Stack Overflow link>'